I was just a bit unlucky and had a few issues during my stay, but May and her charming parents did all they could to rectify things promptly. The building is extremely nice, the apartment is large and is kept perfectly clean.
The only thing for future guests to bear in mind is that the mattress in the master bedroom is hard - and the one in the second bedroom is beyond hard. Rectifying these issues (in my opinion) would make this almost the perfect apartment with the perfect hosts :)